UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

     PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.



                Date of Report (Date of Earliest Event Reported):

                                  May 20, 2004



                            MONRO MUFFLER BRAKE, INC.
                            -------------------------
             (Exact name of registrant as specified in its charter)



New York                      0-19357                       16-0838627
--------------------------------------------------------------------------------
(State of Incorporation)      (Commission File Number)      (I.R.S. Employer
                                                            Identification No.)



200 Holleder Parkway, Rochester, New York                           14615
--------------------------------------------------------------------------------
(Address of Principal Executive Offices)                        (Zip Code)



Registrant's telephone number, including area code             (585) 647-6400
--------------------------------------------------------------------------------

Item 7. Financial Statements, Pro Forma Financial Information and Exhibits.

(a)   Not applicable.

(b)   Not applicable.

(c)   The following is a list of exhibits furnished with this Current Report on
      Form 8-K:

Exhibit No.      Description
-----------      -----------

99.1             Press Release
                 dated May 20, 2004

Item 12.  Results of Operations and Financial Condition

On May 20, 2004, the Registrant issued a press release announcing its operating
results for the fourth quarter ended and year ended March 27, 2004. A copy of
the press release is furnished herewith.

                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                     MONRO MUFFLER BRAKE, INC.
                                     -------------------------
                                            (Registrant)






May 21, 2004                         By:  /s/ John W. Van Heel
                                          ------------------------------
                                     John W. Van Heel
                                     Vice President-Finance